Peng-xiang Yan

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OBJECTIVE To study the neuroimaging characteristics, microsurgical treatment and prognosis of cranial-cervical type giant ependymoma within the fourth ventricle in adult patients. METHODS The clinical data of 22 patients with cranial-cervical type giant ependymoma within the fourth ventricle were retrospectively analyzed. The suboccipital and C(1-3)(More)
OBJECTIVE To study the clinical features, neuroimaging presentations, diagnosis and differential diagnosis, and operative warning events of the solid cerebellar hemangioblastoma. METHODS The clinical data of 48 patients with solid cerebellar haemangioreticuloma were retrospectively analysed. Preoperative examinations included CT and MRI in all patients,(More)
Central neurocytoma (CNC) often develops in the ventricular system adjacent to the interventricular foramen and septum pellucidum. According to the World Health Organization, CNCs are classified as grade II tumors, and in recent years it has been reported that CNCs have occasionally occurred in rare areas of the central nervous system. The current study(More)
To evaluate the level of hormones before and after female renal transplantation, we measured pituitary gonadal hormones, estrovite, progestin, and prolactin in 25 renal transplant recipients (RTR) and 25 cases of chronic renal failure (CRF) using engyme immunoassay (EIA). The results indicated that serum RRL, FSH and LH level were reduced in RTR females(More)
Hemangioblastomas (HBMs) are highly vascular tumors of the central nervous system. Sporadic HBMs are nearly always solitary, and solitary HBMs are similar to intracranial arteriovenous malformations due to their highly vascular characteristics. However, to the best of our knowledge, cases of HBM in the cerebellum mimicking an aneurysm have never been(More)
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